Stop-motion for winding-machines.



PATENTED MAR. 29, 1904.

I T. COOPER.

STOP MOTION FOR WINDING MACHINES.

APPLICATION FILED SEPT. 25. 1903.

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No. 750,001. PATENTED 01010.29, 1904.

STOP MOTION PoR WINDING MAGHINES.

APPLIOATION FILED SEPT. 25. 1903.

N0 MODEL. I 3 SHEETS-SHEET 2.

PATENTED MAR. 29, 1904. T. COOPER. STOP MOTION FOR WINDING MACHINES.

APPLIGATION FILED SEPT. 25. 1903.

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me Nonms percus no, PuoTo-Ll'zm UNITED STATES Patented March 29, 1904.

PATENT OEETOE.

THOMAS COOPER, OF KIDDERMINQSTER, ENGLAND, ASSIGNOR TO CROMP-l TON AND KNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, i A CORPORATION OF MASSACHUSETTS.

i STOP-MOTION FOR .WINDING-NIACHINES.

SPECIFICATION forming part of Letters Patent No. 756,001, dated March 29, 1904.

Application led September 25, 1903. Serial No. 174,639. (No model.)

To all whom t may concern,.-

Be it known that I, THOMAS COOPER, a subject of the King'of Great Britain, residing at Kidderminster, in the county of Worcester,

England, have invented certain new and useful Improvements in Stop-Motions for Winding-Machines; and I do hereby declare the following to be a full, clear, and exact description .of the invention, such as will enable others ro skilled in the art to which it appertains to make and use the same.

This invention relates to bobbin or spool setting frames or bobbin or spool filling machines for AXminster or moquette carpet looms.

The object of my invention is to provide improved mechanism for securing greater uniformity in the amount of yarn wound on each ofthe bobbins or spools introduced or fitted zo into the setting frame or machine and also to effect the automatic stopping of the machine as soon as the required amount of yarn has been wound on the bobbin or spool, whereby `dials or other indicators which require to be 2 5 observed from time to time are dispensed with and other minordisadvantages attending the use of ordinary setting-frames are obviated.

My invention consists in certain novel features of construction of my improvements, as

3o will be hereinafter fully described.

Referring to the drawings,Figure l is a front elevation of that end of a setting-frame to which the mechanism constituting my invention is applied. Fig. 2 is an end elevation of Fig. l looking in the direction of arrow a, same figure. Fig. 3 is an enlargedlongitudinal sectional View of the head portion of the machine. Fig. 4is an enlarged elevation of aportion of the bobbin detached. Fig. 5 is a crosssection of the bobbin. Fig. 6 is an enlarged elevation of the driving belt-pulley, sliding friction disk or clutch, and clutch-lever and parts.

Fig. 7 is a sectional elevation taken on the irregular line b c in Fig. 6. Fig. 8 is an enlarged end elevation of the head portion of the machine. Fig. 9 is an enlarged elevation of the stop-lever, and Fig. 10 is a plan thereof. Fig. l1 shows in cross-section and elevation a portion of the chain carrying the stud or studs which actuate the stop-lever. Fig. l2 is a side 5o elevation ofthe sliding releaser 27 carried by the clutch-lever; and Fig. 13 is a sectional plan view of the clutch-lever, supplementary or secondary lever, and coupling-catch, taken on line d e in Fig. 6.

In the accompanying drawings the same reference-numerals indicate corresponding parts in the several gures.

The portion of the bobbin or spool represented in the machine is marked 2. Instead 6o of relying on the frictional grip of the rotating cups (one only of which is shown and marked 3) which receive the end iianges 2 lof the bobbin 2, as is usual, I provide for a positive drive between the said cups 3 and the 65 bobbin 2 by cuttinga groove 2 in the barrel of the bobbin throughout its length and Inaking a hole 2' in each end flange 2'. (See Figs. 4 and 5.) A hole 3 is also made in each cup 3. A wire 4, somewhat longer than the `7o bobbin 2, is fitted into the groove 2 in the bobbin so that its ends engage in the hole 3' in each cup 3. (See Fig. 3.)- There is thereby obtained a positive engagement or connection between the bobbin 2 and each end cup 3, 7 5 which insures a positive drive, and consequently the slipping of the bobbin in the end cups during the winding of the yarn on the bobbin, which frequently takes place in ordinary setting-frames, is prevented. 8o

The spindle 3" of each end cup 3 is driven from a driving-pulley 5, loose on the shaft 6 of the machine,in the following manner: The leather-covered face of a sliding friction disk or clutch 7, keyed to the said shaft 6, can be 8 5 made to forcibly bear against a flange on the loose driving belt-pulley 5 by a clutch-lever 8, (see Figs. 6 and 7,) which clutch-lever 8 is pivoted at 8 to a hanging bracket 9 (see Fig.

l) on the frame of the machine. When the 9o friction disk or clutch 7 is thrown by the turning of the lever 8 into contact With the iiange of the driving-pulley 5, the shaft 6 and spur-Wheel l0 thereon are driven and rotate with the lsaid pulley 5. The said spur-wheel l0 gears with and drives a similar spur-Wheel 11 on the parallel shaft 12, which has at its end a second toothed wheel or pinion 13. The pinion 13 gears with a toothed wheel 14,which drives a pinion 15 on the bobbin-receiving cup-spindle 3, as will be best seen by reference to the enlarged view Fig. 3. Each end of the machine is provided with the gearing 13 14 15, so as to gear the shaft 12 to the bobbin-receiving spindles 3" at both ends. The number of rotations of the spindle 3 and bobbin 2 is controlled and the machine automatically stopped when the bobbin has made the prearranged number of rotations and with the wire 4 on top or brought uppermost by the following construction and arrangement of parts:

Keyed to the bobbin-receiving cup-spindle 3" and on the outer side of the spur-pinion 15 is a single-toothed driving-wheel 16, which gears with a star-wheel17, (see Figs. 3 and 8,) which star-wheel17 and its connected sprocket 18 are loose on the spindle which supports the toothed wheel 14 and held from endwise movement by any usual means. It will be understood that for each rotation of the bobbin 2 and single-toothed driver 16 on the spindle 3 the star-wheel 17 is turned a distance of one tooth. The star-wheel 17 has operatively connected thereto a sprocket or chain pinion 18, over which is a chain 19, made up of aseries of detachable links. (See Fig. 11.) One of the said links has on it a stud, inger,or projection 20. The number of links employed to form the endless chain depends upon the amount of yarn to be wound on the bobbins; but where the bobbins are to be only partially filled I may employ a chain having two or more stud-carrying links 20.

Immediately over the chain-wheel 18 is the V-shaped end of a lever 21, pivoted at 21 to the frame of the machine. The outer end of the said lever 21 supports a link 22,the upper end of which extends into and occupies a slot 23 between the jaws or arms of a pair of spring-levers 23 23", constituting the outer arm of a stop-lever 23. (Shown detached in Figs. 9 and 10.) The lever 23 has on its inner side a stud 23"', which for the greater part of the time the machine is working engages in a hole in the vertical link 22. The said lever 23 also has a pin 23 on its outer side, which pin is connected by a connectingrod 24 to a lever 25, which when turned automatically in the manner hereinafter described depresses a depending link or arm 26 and a sliding releaser 27, (shown detached in Fig. 12,) which releaser 27 is attached to the lower end of the said link 26 and works in staples or guiding-eyes on the lower end of the clutchlever 8.

In the initial position of the parts of the machine-that is, in the positions which the parts occupy when an empty bobbin or spool has been introduced yinto the machine and fixed by arranging the wire 4 in the groove the full-line positions represented in Figs. 1, Y

2, and 8. To start the machine, the springlevers 23 and 23" of the stop-lever 23 are firmly gripped by the hand of theattendant at that end of the machine, so as to close the said handle ends, as is indicated in dotted lines in Fig. 10, and thereby disengage the pin 23' from the link 22. The said stop-lever 23 is then turned into the dotted position indicated in Fig. 8. By this action the curved stop-arm of the stop-lever 23 is raised out of the path of the single tooth of the star-wheel driver 16. Further, the connecting-rod 24, attached to the other arm of the stop-lever 23, is depressed, and through the lever 25 the link 26 and releaser 27 are raised and a notch 27' in the latter (see Fig. 12) made to coincide with the space between the guiding eyes or staples on the clutch-lever 8. (See Fig. 7.)

The ordinary connecting-rod 28 between the two knee-block levers of the machine (one only of which is shown and marked 29) instead of being connected directly to the clutchlever 8, as in an ordinary bobbin-filling machine, is connected to a secondary lever 30, pivoted at 31 to the clutch-lever 8. The secondary lever 30 is of such thinness (see Fig. 7) that it is capable of a limited amount of elasticity or spring movement. The lower end of the secondary lever 30 is provided with a catch 32, and when the attendant moves the knee-block lever and trips it from the usual holding-notch at the end of the machine not represented the spring 33 effects the pulling of the connecting-rod 28 in the direction indicated by the arrow f in Fig. 1, and the lever 30 is thereby turned on its pivot 31 and made to coincide with the lever 8, as is represented in Figs. 6 and 7. By this motion of the lever 30 the catch 32 is pressed past the lever 8 and snaps into engagement with its other edge, (see Fig. 13,) and thereby couples the two levers 8 and 30 together, as is represented in Figs. 6 and 7, so that on the attendant again applying pressure to the knee-block lever at the end of the machine not represented to again engage it with the usual holding-notch the motion of the connecting-rod 28 is reversed and the said levers 8 and 30 turn as one and effect the throwing of the friction-disk 7 or clutch into engagement with the driving-pulley 5, and consequently start the machine.

The machine may be stopped from time to time, if desired, in the ordinary way and be restarted also in the ordinary way; but when the bobbin or spool is illed or supplied with the predetermined amount of yarn the machine is automatically stopped, as I will now proceed to explain.

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under the action of the spring 34 .brought down into the dotted positions indicatedl in Fig. 8, in which positions the pin 23W, which had been temporarily disengaged from the hole in the link 22, reengages-itself therein,

andthereby reconnects the stop-lever 23 with the said link 22. When by the rotation of the chain-wheel 18 and the movement of the chain 19 the vstud 20 has` beenagain brought under the V-shaped end of the lever 21, the

said lever 21, link 22, and handle-arm of the stop-lever 23 are lifted, and there is thereby simultaneously effected the stopping of the machine and the lowering of the curved or stop arm of the lever 23 into the path oi' the single tooth of the wheel 16, so that the machine cannot be inadvertently restarted until the handle end of the stop-lever 23 has been first gripped and depressed, as hereinbefore described.

The automatic raising of the handle end of the stopelever 23 effectsv the stopping of the machine in the following manner: The turning of the lever 25 through the connectingrod 211, attached at its upper end to the stoplever 23, effects the depressing ofthe releaser 27, the plain or unnotched part of which being brought against the catchv 32 forces the lower end of the secondary lever 30 outward andthe said catch 32 out of engagement with the clutch-lever 8 and the two levers are separated under the action of the spring 35, as is represented in Fig. 1'. It will thus be understood that these two levers 8 and 30 cannot be made to rengage or couple together until the plain or u nnotched part o1' the releaser 27 has been taken out of the path of the catch 32 of the secondary lever 30.

Where only one stud-link 2O is employed in the endless chain 19, the machine is stopped after each 4complete movement of the said chain; but where two or more stud-links 20 are employed in the endless chain the machine is automatically brought to .rest when the chain 19 has made a halil or partial movement. I prefer to employ two or more stud-links 20 in the chain only when the spools are to be partially filled, as hereinbefore described.

Although I have described and represented the endless chain 19 with a stud-carrying link or links 2O only in connection with the setting-frame-stopping mechanism constituting part of my invention, yet it may( be applied to or used in combination with other arr'angements of stopping mechanism for settingframes or bobbin-iilling machines, nor do I limit myself to the precise details of the mechanism described.

Having thus described my invention, what I claim as new, and desire' to secure by Letters Patent, is-i.-

'A 1. In a winding-machine, the .combination of the driving-pulley, acup-spindle, driving connections between' the driving-pulley and cup-spindle, --a'clutch,means for moving said clutch to. operatively engager and disengage thedriving-pulleyand said driving. connections, a stop-lever, connections between the stop-lever and said means vfoneiecting .the

disengagement o1' the clutch from the drivingpulley, and devices .carried by the stop-lever for positively arresting the motion o1' the cupspindle as the" clutch is disengaged from the driving-pulley. .i

2. In a Winding-machine, the combination of the driving-pulley, a cup-spindle, driving connections between the driving-pulley and cup-spindle, a clutch, means for'moving said clutch to operatively engage and'disengage the driving-pulleyand saiddriving connections, a stop-lever, connections between the stop-lever and said means for effecting the disengagement of the clutch Jfrom the driving-pulley, devices carriedby the stop-lever for positively arresting the motion o1' the cup-spindle as the clutch is disengaged from the drivingpulley, an endless chain carrying a stud, means for moving said chain, and devices adapted to `be actuated by said stud for moving the stoplever.

3l In a winding-machine, the combination of a cup-spindle, means for driving the same,

a clutch, a stop-lever, connections between said stop-lever and clutch for releasing the clutch from the driving means, a toothed driver mounted on the cup-spindle, a chain carrying a stud and driven from the said toothed driver, devices actuated by said stud for moving the stop-lever and thereby releasing the clutch, and means carried by the stop-lever for engaging the toothed driver to thereby stop the cup-spindle in a predetermined position of its revolution. Y

L1. In a winding-machine, the combination o1' a cup-spindle and means Jfor positively operating the same, a stopping mechanism for stopping the cup-spindle, a stop-lever for actuating the stopping mechanism, a chain carrying a stud, means to move said chain, devices connected to the stop-leverand adapted to be actuated by the said studto move the stop-lever when a predetermined quantity of yarn has been wound to thereby actuate the stopping mechanism, and hand-operated means carried by the stop-lever for disconnecting the stop-lever from said devices to permit the restarting of the winding-machine.

5. In a winding-machine, the combination of a cup-spindle, means for driving the same including a clutch, a stop-lever, connections between the stop-lever and clutch for releasing the clutch, a single-toothed driver mounted on the cup-spindle, a star-wheel actuated by IOO IIO

the single-toothed driver, a chain-wheel operatively connected to the star-wheel and carrying a chain, a stud on said chain, devices connected to the stop-lever adapted to be actuated by said stud for moving the stop-lever, said stop-lever being provided with a stop-arm which on movement of the stop-lever to release the clutch engages the single-toothed driver.

` 6. In a winding-machine, the combination of a driving-shaft, a cup-spindle, means including a clutch for driving the cup-'spindle from the driving-shaft, a clutch-lever for moving said clutch, a secondary lever carried by the clutch-lever, a knee-block lever, a connecting-rod attached at one end to the knee-block lever and at the opposite end to the secondary lever, a catch provided on said secondary lever which catch is adapted to snap into engagement with the clutch-lever, a releaser carried by the clutch-lever and mechanism for moving the releaser in one direction automatically for stopping the machine, and in the opposite direction by hand as a preliminary to starting the machine.

7. In a winding-machine, the combination of a driving-shaft, a cup-spindle, means including a clutch for driving the cup-spindle from the driving-shaft, a clutch-lever, a secondary lever mounted on the clutch-lever and provided with a catch for connecting the two levers, a -stop-lever, means for moving the stop-lever when a predetermined quantity of yarn has been wound, mechanism movable by the stop-lever for releasing the catch connecting the clutch and secondary levers, and means to thereupon move the clutch-lever to throw the clutch into inoperative position.

In testimony whereof I aix my signature in presence of two witnesses.

THOMAS COOPER.

Witnesses:

JAMES MoRToN,

ALBERT E. HoR'roN. 

